386 results about "Coverage ratio" patented technology

The present invention provides an image-forming apparatus containing an image bearing member, a latent electrostatic image forming unit, a developing unit, in which the developing unit contains an image developing unit, a developer supplying unit, and a developer container, the mass abundance ratio of the toner to the carrier is 80:20 to 95:5 in the developer container, the developer container contains a flexible pouched member which reduces its volume by reducing the internal pressure and a developer outlet to discharge the developer contained therein, the developer satisfies a relation of formula (1) where A denotes a percentage of voids calculated from a tap density of the toner and B denotes a degree of fluidity (sec / 50g) of the developer at a toner coverage ratio of the carrier being 50%: A≦0.01×B−0.2  (1)

An overlay target for use in imaging based metrology is disclosed. The overlay target includes a plurality of target structures including three or more target structures, each target structure including a set of two or more pattern elements, wherein the target structures are configured to provide metrology information pertaining to different pitches, different coverage ratios, and linearity. Pattern elements may be separated from adjacent pattern elements by non-uniform distance; pattern elements may have non-uniform width; or pattern elements may be designed to demonstrate a specific offset as compared to pattern elements in a different layer.

A method and apparatus for detecting and determining the location of a coverage hole in a communications network such as a cellular communication system wherein the location is determined from operational parameters and / or by network elements themselves. Additionally is a method to reduce a hole by adjusting antennae parameters preferably remotely and automatically and this can be done in conjunction with hole location to optimise the system.

A method for integrated media monitoring is disclosed, wherein multiple forms of media are monitored and searched according to user defined criteria. The method may be used by a business to understand how a product or service is being received by the general public. Monitoring includes analysis of closed captioning data and human monitoring so as to provide a business with a full understanding of advertising and editorial effectiveness. A user provides media search parameters via a network, and a near real-time hit list is produced and presented to the requesting user. Options for previewing and purchasing matching media segments are presented, along with corresponding reports and coverage analyses. Previewing can occur via a streamed video format, whereas purchasing allows for high quality video download. Reports include information about how the product was conveyed, audience watching, and value to the business. Reports can be created by the system or by the user, formatted for presentation, purchased, and downloaded.

An FRP is produced using a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein the matrix resin is impregnated into the sheet-like reinforcing fiber substrate and also covers one surface of the sheet-like reinforcing fiber substrate, and the matrix resin impregnation ratio is within a range of 35% to 95%; a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein the matrix resin exists on both surfaces of the sheet-like reinforcing fiber substrate, and the portion inside the sheet-like reinforcing fiber substrate into which the matrix resin has not been impregnated is continuous; or a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein at least one surface exhibits a sea-and-island-type pattern comprising resin-impregnated portions (island portions) where the matrix resin is present at the surface and fiber portions (sea portions) where the matrix resin is not present at the surface, the surface coverage ratio of the matrix resin on those surfaces with said a sea-and-island-type pattern is within a range of 3% to 80%, and the weave intersection coverage ratio for the island portions, represented by a formula (1) shown below, is at least 40%, displays excellent external appearance, with no internal voids or surface pinholes, even when molded is conducted using only vacuum pressure. Island portions weave intersection coverage ratio (%)=(T / Y)×100   (1) (wherein, T represents a number of island portions that cover weave intersections, and Y represents a number of weave intersections within said reinforcing fiber woven fabric on said surface with said sea-and-island-type pattern).

A magnetic toner is provided that exhibits an excellent electrostatic offset resistance both initially and after long-term use. The magnetic toner contains: magnetic toner particles containing a binder resin and a magnetic body; and inorganic fine particles present on the surface of the magnetic toner particles, wherein the inorganic fine particles present on the surface of the magnetic toner particles contain a prescribed metal oxide fine particle in a prescribed proportion; the magnetic toner has prescribed numerical value ranges for a coverage ratio A of the magnetic toner particle surface covered by the inorganic fine particles and for a coverage ratio B by the inorganic fine particles that are fixed to the magnetic toner particle surface; the magnetic toner particle contains a crystalline polyester; and measurement of the magnetic toner with a differential scanning calorimeter provides a characteristic differential scanning calorimetric curve.

The invention relates to a method for making a choice between a D2D cooperating multicast mode and a fixed relay cooperating multicast mode in a cellular system. Based on the fact that the sending speed is limited by the poorest channel quality of users in multicast transmission and based on the rule that the users with the poorest channel quality are usually distributed on the edge of a community, transmission of one jump is divided into transmission of two jumps with good channel quality so that the higher data transmission speed and the larger throughput capacity can be achieved. The method comprises the steps that the utility values of the fixed relay cooperating multicast mode and the D2D cooperating multicast mode at the second jump are compared according to the actual conditions, so that the optimal transmission policy is selected, and the overall operation utility value of the cellular system is increased. According to the method, the advantages of the two cooperating relay multicast modes are effectively combined, the relay mode is reasonably selected, the transmission speed of a multicast service and the coverage rate of the users at the edge are improved, the overall utility of the cellular system is optimized, and better user experience can be obtained; operation steps are simple, computation complexity is low, the technology is easy to achieve, and popularization and application prospects are good.

The object is to provide a photovoltaic power generation module that reduces the loss from a disk-shaped single crystal wafer and can make full use of arcuate cells, which have not until now been utilized effectively, and a photovoltaic power generation system employing same, to provide a photovoltaic power generation module having a high operating voltage per unit area (also called ‘area voltage’), and a photovoltaic power generation system employing same and, furthermore, to provide a photovoltaic power generation module that can increase the module coverage ratio relative to the effective area for installation on a house roof, and a photovoltaic power generation system employing same. The photovoltaic power generation module comprises arcuate cells divided from a disk-shaped single crystal silicon photovoltaic power generation cell, the arcuate cells having a circular arc with a central angle of 90°, the arcuate cells having a grid-perpendicular to the chord and at least one busbar perpendicular to the grid, and the arcuate cells being arrayed in a lattice pattern, wherein the arcuate cells have an area of 28 to 65 cm2 and 14 to 42 thereof are arrayed.

The invention discloses a method and a device for multicell joint optimization under coverage of a cellular mobile communication network. The method disclosed by the invention comprises the steps of: collecting the position information of all base stations in a target area; performing grid partitioning on the target area; measuring propagation loss from each base station to each grid point; traversing combinations of total emission power and antenna electrical parameters and making statistics on an adverse coverage ratio; and selecting a combination enabling the adverse coverage ratio to be minimal, and feeding optimal excitation current to each antenna. The device disclosed by the invention comprises an information collection module, a gridding processing module, a propagation loss determination module, a traversing solving module and a selecting module. According to the invention, by means of optimizing directional diagrams and emission power of array antennas to realize the multicell joint optimization orienting to an actual propagation environment under network coverage, the adverse coverage of an entire target area is minimal; and the method and the device not only can be applied to the multicell joint optimization orienting to the actual propagation environment under the network coverage, but also can be used for singly correcting the adverse coverage of exceptional cells.

A particle swarm algorithm is applied to an optimum coverage problem of wireless sensor network nodes, and the invention provides a coverage mechanism of the particle swarm optimization algorithm based on a discrete binary edition, and the mechanism is used for performing optimal solution on the wireless sensor network node coverage problem. The method comprises the following steps: defining the wireless sensor network node coverage problem as a 0 / 1 planning problem, encoding individuals of a binary particle swarm algorithm as a 0 / 1 binary string and then performing optimization by an evolutionism of the particle swarm algorithm. In the method, two important indexes are defined to evaluate the solution results, one index is 'coverage' of a region, and the other index is 'consumption rate' of the sensor. Validity and high efficiency of the algorithm are verified by a simulation experiment.

Aiming at the disadvantages of a basic particle swarm algorithm on the solving of the coverage optimization problem of a wireless sensor network, in combination with a maximum coverage algorithm, the invention provides a particle swarm-based coverage optimization method of a wireless sensor network mobile node. The algorithm takes a mobile node position vector quantity as an input parameter, and a network coverage rate as a target function, and the positions among nodes can be adjusted by a far module and a near module mentioned in the maximum coverage algorithm, the nodes are enabled to be far away if being distributed densely; and the nodes are enabled to be near if being distributed loosely. In combination with the position adjustment and the particle swarm algorithm, the positions of the nodes and the nearest node can be adjusted in a particle swarm algorithm speed updating formula, and the particle can be guided to be evolved, so that the coverage range of the nodes can be preferably expanded, and the capability of the particle swarm algorithm for searching the globally optimal solution can be enhanced, i.e. the network coverage rate can be improved. Finally, the wireless sensor network coverage optimization problem can be solved by the position adjustment-based particle swarm algorithm.

The invention discloses an optimization method for deploying the nodes of a wireless sensor network for regional monitoring. The method comprises the following steps: firstly, reticulating the wireless sensor network monitoring range which contains obstruction regions and hotspots, then creating an objective function which is to be optimized according to a node-detecting model and requirements for covering various types of regions, solving the optimal node-deployment position set by the particle-group optimizing algorithm, and designing two variation operators of the best-the worst variation and an elastic potential-energy in combination with the character of deployment so as to quicken the convergence-velocity of the particle-group optimizing algorithm, and finally using the Hungarian algorithm to obtain the optimal one-to-one mapping relationship between the original node-deploying position set and the optimized node-deploying position set so as to ensure that the nodes consume the least total energy for moving to the optimized deployment position. By the invention, the problem of higher-dimension optimization before node deployment optimization of wireless sensor network can be effectively solved, and the coverage rate of the regions under monitoring can be improved from the angle of object detection function.

The invention discloses a method for inter-planting forage grass in orchards at a karst rock desertification region, in particular a method for inter-planting leguminous forage grass and gramineous forage grass below fruit trees in the orchards, wherein the mixing weight ratio of the leguminous forage grass to the gramineous forage grass is (5-7):(3-5), and the seeding rate is 1.5-2.0 kg / mu. According to the method, the leguminous forage grass and the gramineous forage grass are selected and sowed in a mixed way according to the characteristics of high yield and low crude protein content of the gramineous forage grass and high crude protein content of the leguminous forage grass, so that the yield and the quality of the forage grass are improved, and the palatability of the forage grass and the absorption of livestock to the nutrients of the forage grass are enhanced; by performing mixed sowing on the leguminous forage grass and the gramineous forage grass according to a weight ratio of (5-7):(3-5) under fruit trees, the coverage ratio of land vegetation of the orchards is increased and water and soil loss is greatly reduced; and meanwhile, the soil fertility of the orchards can also be increased, the environment of the orchards is improved, the productivity of land is improved, and the aims of increasing the yield of fruit trees and the yield of the forage grass are fulfilled.

The embodiment of the invention provides a method and a device for determining wireless network coverage rate. The method is an effective combination of a road testing method and a coverage emulation method, and comprises the following steps: in grids where measurement points are located, replacing part of the wireless network parameter emulation values obtained by the coverage emulation method with the wireless network parameter measurement results obtained by the road testing method, and determining the wireless network coverage of the network coverage evaluation area by using the replaced wireless network parameter emulation values and the non-replaced wireless network parameter emulation values, thereby enhancing the accuracy of the wireless network coverage rate obtained by the coverage emulation method; or, setting coverage weight for various scenes in the network coverage evaluation area according to the importance of the scene to the wireless network coverage evaluation, determining the coverage weight corresponding to the grids according to the scenes to which the grids belong, and determining the wireless network coverage rate through combination with the coverage weight, thereby enhancing the accuracy of the wireless network coverage rate obtained by the coverage emulation method.

The invention relates to a measuring method for colorimetric parameters of an LED display screen. According to the luminescent characteristics of the LED display screen, the method creates and stipulates the measuring steps of color domain coverage ratio, non-uniformity of white field chromaticity and color reproduction of the LED display screen and a calculating method, provides a method for improving the accuracy of measuring and debugging the value and the range of the white field chromaticity and improving the accuracy of measuring primary wavelength of base color, and carries out necessary discrimination to peak wavelength of an LED tube and primary wavelength of an LED screen from scientific concept. A 1980 color luminance meter which conforms to spetral tristimulus values and contains four groups of filter plates is adopted to measure the colorimetric parameters of the LED display screen accurately; by adopting the method, the accuracy of measurement can meet the technical requirements to the standard color luminance meter. A 1980 spectroradiometer with spectral bandwidth and the sampling interval of 1nm can accurately measure the peak wavelength of the LED tube. In the debugging process, a multiturn potentiometer is adopted to achieve the purpose of finely selecting the resistance value of a resistor. The core technology is the necessary premise and key of debugging and manufacturing the LED display screen with excellent color reproduction.

A magnetic toner comprising a toner particle containing a styrene resin as a binder resin and a magnetic substance, and a first inorganic fine particle on surface of the toner particle and an organic-inorganic composite fine particle on the surface of the toner particle, wherein the first inorganic fine particle i) contains at least one inorganic oxide fine particle selected from the group consisting of silica fine particle, titanium oxide fine particle and alumina fine particle, with the proviso that the inorganic oxide fine particle contains silica fine particle in an amount of 85 mass % or more based on the total mass of the inorganic oxide fine particle, and ii) has a number-average particle diameter (D1) of 5 nm or more and 25 nm or less, the coverage ratio A of the toner-particle surface with the first inorganic fine particle is 45.0% or more and 70.0% or less.

The invention provides a method and a device of evaluating site planning. The method comprises the following steps of computing a weak coverage rate of a planning site; determining coverage level grading parameters of the planning site according to the weak coverage rate of the planning site; determining at least one first grading parameter according to platform foundation information; computing a weighted average value of the coverage level grading parameters and all first grading parameters as a comprehensive grading parameter of the planning site; and evaluating the planning site according to the comprehensive grading parameter, wherein the first grading parameters consist of a portfolio grading parameter, an investment payoff period grading parameter, a market requirement grading parameter, a coverage scene grading parameter, a complaint grading parameter and a site distance grading parameter. An intelligent terminal both obtains the coverage level grading parameters and the first grading parameters, that is to say, the intelligent terminal carries out corresponding evaluation on site planning from multi-dimensional perspective, so that accuracy for planning is improved.

The invention discloses a WSN (wireless sensor network) rapid self-positioning method based on triangle form estimation. From the aspect of triangle form estimation, a triangle centroid positioning algorithm having the minimal error is studied, and a concept of effective triangle is proposed. The triangle centroid algorithm is used on effective triangles and the error in positioning is minimal. The positioning algorithm is used on all triangles which satisfy basic conditions of effective triangle. All solved possible points are formed into a polygon. The centroid is obtained again, and an estimated position of an unknown node is obtained. Accidental calculation error is prevented by using anchor node information in a network and through a method of obtaining a mean value from multiple possible results. A method of two points positioning is introduced. In the case of only two anchor nodes, the positioning of the unknown node is realized by using an auxiliary anchor node. The positioning coverage rate of nodes is effectively improved without increasing hardware equipment and complexity.

The invention relates to a function covering rate analyzing method of logic test, which comprises following steps: (a), inserting probe into the function branch of reference model; (b), when executing to the probe in the test process, using stat function to record the description information of probe into stat list; (c), when present mission is end, printing the record information of present function branch, to the log document; (d), when all tests are end, opening each log document of test, collecting all covering information of function branches, to generate tested function branch stat list; (e), scanning the reference model cost, to generate detecting point tree; (f), comparing said tested stat list and the detecting point tree, to obtain function covering rate information. And the inventive method has simple operation, reliable information and flexible operation on testing point.

An image forming apparatus in which a predetermined image density can be obtained by correcting a toner density control target value without consuming toner. The toner density of the developer is controlled so that an output value Vt of a magnetic permeability sensor approaches a target output value Vtref. In addition, the target output value Vtref is corrected in accordance with image coverage history information of output images transferred to a transfer paper and image coverage ratio history information of output images determined from the image coverage thereof and the size of the transfer paper. This history information comprises, for example, a cumulative average value of the image coverage or the image coverage ratio per transfer paper. It may also comprise a moving average value of the image coverage or the image coverage ratio per transfer material.

An image forming apparatus in which a predetermined image density can be obtained by correcting a toner density control target value without consuming toner. The output The output value Vt of the magnetic permeability sensor and the target output value Vtref are compared, and the toner density is controlled by controlling a powder pump on the basis of the comparative result thereof so that the output value Vt approximates the target output value Vtref. In addition, the target output value Vtref is corrected on the basis of the detected result of the image coverage ratio so as to maintain a predetermined development potential of the development apparatus. By virtue of this, even when image forming that involves a significant change in the toner replacement amount in the development apparatus is performed, for example, even when an image of high image coverage ratio is output, the toner density is adjusted to maintain the development capability at a constant, and a predetermined image density is ensured. Moreover, because the image coverage ratio can be detected without consuming toner, toner does not need to be consumed when the target output value Vtref is corrected.

A collector that has enough hardness and flexibility and a battery electrode substrate that uses this collector are provided. Also provided is a low-cost battery electrode substrate that exhibits excellent high-rate charge / discharge characteristics and low electrical resistance and that is able to avoid the decline in cycle characteristics caused by repetitive charging / discharging. The invention is a battery electrode substrate having a structure in which a nickel film is coated on the surface of plastic fiber of a woven or unwoven fabric, wherein a metallic porous body in which the average coverage ratio by the nickel film is not less than 85% is used. The invention is also a collector comprising a metallic porous body having a structure in which a surface of plastic fiber of a woven or unwoven fabric is coated with a nickel film so as to be an average coverage ratio of not less than 85%, wherein the metallic porous body comprises at least two layers of a lower density region and a higher density region in the thickness direction between which there is a difference in density of included nickel, and a thickness of the lower density region is not less than 1.5-times a thickness of the higher density region. The invention is also a battery electrode substrate that has a structure in which a surface of a plastic fiber in a unwoven fabric is coated with a nickel film, wherein the battery electrode substrate uses a metallic porous body in which a transverse-to-longitudinal ratio of the electrical resistance is not less than two times. The plastic fiber is preferably a fiber that has a core / sheath composite fiber structure in which the core is polypropylene and the sheath is polyethylene.

The invention discloses a multi-dimensional assessment and precise construction investment evaluation method based on coverage and value relevance and relates to the technical field of big data analysis in data communication. The method disclosed by the invention performs multi-dimensional analysis on an MR poor coverage ratio, a quantity of MR sampling points, user flow, number of users, user perception data and / or user set information, field road test data, complaint information and suppression flow big data, so that indoor values are excavated, precise planning is performed, site building value is effective improved, service turn-around time is shortened, a network awareness word-of-mouth image of an operator is improved, and finally enterprise benefit is improved.